Describe effective communication methods between a rigger and crane operator during a lift.

• A. Use standardized hand signals or radios; designate a signaler; confirm lift plan and CG, maintain direct line of sight when possible, and brief contingencies.
• B. Leave it entirely to the operator.
• C. Yell instructions from the ground.
• D. Use only verbal communication when in range.

Answer: (A)

Clear, reliable communication during a lift requires a planned, multi-channel approach that keeps everyone aligned on the load, path, and actions. Using standardized hand signals or radios gives both the rigger and crane operator a common language that works even in a loud yard or at a distance. Designating a signaler creates a single, accountable person responsible for issuing instructions, which reduces the risk of mixed signals. Before lifting, confirming the lift plan and the load’s center of gravity ensures everyone understands how the load will move, where it should be rigged, and the crane’s required settings, so the operation stays within weight and balance limits. Maintaining direct line of sight when possible helps the signaler and operator read nonverbal cues and verify that signals match the load’s behavior. Briefing contingencies prepared for contingencies—such as how to stop a lift, handle a gust of wind, or respond to equipment issues—gives the team a clear, agreed-upon course of action if something goes off plan. Leaving control to the operator alone, shouting from the ground, or relying on verbal communication alone in range all risk miscommunication, misinterpretation, and unsafe movements.